package com.yy.super_;

/**
 * chapter08  com.yy.super_
 * 2023-04-05 18:34
 *
 * @author yy yuyue
 * description : 不可描述
 * @date 2023/4/5 18:34
 */
public class A {
    //4个属性
    public int n1 = 100;
    protected int n2 = 200;
    int n3 = 300;
    private int n4 = 400;

    public A(){

    }
    public A(String name){

    }
    public A(String name,int age){

    }
    public void cal(){
        System.out.println("A类的cal() 方法...");
    }
    public void test100(){

    }
    protected void test200(){

    }
     void test300(){

    }
    private void test400(){

    }
}
